• 한국환경복원기술학회지
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• 제9권2호
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• pp.1-15
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• 2006

As the imports of foreign agricultural products are liberalized and the consumption of agricultural products declines, abandoned rice paddy fields continues to rise. However, such abandoned rice paddy fields has not been precisely surveyed yet. In this backdrop, a necessity to develop technology to utilize such abandoned rice paddy fields has emerged. Utilization of abandoned rice paddy fields as wetlands may be a good example. This study aimed to survey the current status and characteristics of wetlands created within abandoned rice paddy fields by selecting abandoned rice paddy fields throughout the nation and conducting field surveys on the sites that had transformed into wetlands. The abandoned rice paddy fields almost transformed into wetland and the types of wetlands transformed from abandoned rice paddy fields were mainly Inland/Moutain/Depression/Abandoned rice paddy fields/Marsh/Phragmites communis community and Inland/Moutain/Depression/Abandoned rice paddy fields/Swamp/Salix koreensis community. Abandoned rice paddy fields that had transformed into wetlands was depending heavily on waterways for water supply than other reservoirs and lakes do. Abandoned rice paddy fields transformed into wetlands was most observed in mountainous area. Abandoned rice paddy fields are because agricultural land is no longer profitable due to international and social changes and is not cultivated as government policy. Wetland period and dimension originated from abandoned rice paddy fields are very various and its surrounding land its mostly forest and the next largest follow roads and rural community. The abandoned rice paddy fields transformed into wetlands is mostly deserted currently. Despite their value as wetlands, no restoration and utilization efforts are made in Korea today. Therefore, it is imperative to conduct a precise current status survey on these areas and introduce management and restoration plans at the government level in the case of important habitats.

• 한국농촌건축학회논문집
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• 제21권1호
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• pp.53-60
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• 2019

There are approximately 1.06 million vacant homes in Korea, accounting for 6% of all housing, and approximately 98 thousand vacant homes are in Gyeongsangnam-do, taking up 8.7% of the housing in the province. In particular, the number of abandoned house in Gyeongsangnam-do is rapidly increasing from 6.7% in 2010 to 8.7% in 2015. This study examined the current state of abandoned house in Gyeongsangnam-do according to the characteristics of cities and rural areas, causes for vacancies, and demand for use of such abandoned house. The study areas were selected based on case studies in Korea and overseas, and a survey was conducted among residents in the selected areas. The survey was on awareness of abandoned house in the neighborhood, causes for vacancies, awareness of owners, the influence of the abandoned house, plans to deal with abandoned house, and plans to utilize abandoned house. The results showed that most residents were aware of abandoned house, especially the ones in rural areas, who had detailed perceptions about abandoned house nearby such as when the homes became empty and whether there are owners of the homes. As for the influence of abandoned house on the surrounding environment, both rural areas and cities responded that abandoned house mostly spoil the beauty of the neighborhood, followed by psychological anxiety such as fear of crimes. Regarding plans to utilize abandoned house nearby, at least half of the residents wanted to use them as rental housing after repairing them. A survey on the actual condition must be conducted at the provincial level in order to establish an integrated system to manage abandoned house in Gyeongsangnam-do. Moreover, it is necessary to come up with application measures according to categories and standards to classify the state of abandoned house in order to use them as resources for community regeneration.

• 농촌계획
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• 제15권1호
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• pp.15-29
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• 2009

Owing to the industrialization, the urbanization and cultivation abandonment actual condition, the most abandoned farmlands increased. Those results have occurred inefficient land use and destruction of agricultural ecosystem with the secondary succession. The research for the abandoned farmlands of Korea is fundamental phase. Also, the researches to restore abandoned farmlands are something yet to develop and not established the restoration for ecological value of abandoned farmlands. The objective of research revealed the ecological functions of abandoned farmlands and it presented an application plan. The research method divided in the literature and case study. Using abandoned farmlands, Japan government tries to create the ecological parks for the conservation of a vulnerable plant species, dragonfly biotope, environmental education and research, etc. Accordingly, the goal for the abandoned farmlands coulds be set suitably to Korean situation as of Japanese styles which are characterized by man-made biotopes.

• Journal of Ecology and Environment
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• 제36권2호
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• pp.131-140
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• 2013

In Korea, many paddy fields in mountainous area have been abandoned because of their low accessibility and rice price and the abandoned paddy terraces have changed into natural lentic wetlands. To understand the relationship between characteristics of environmental conditions and early development of plant community in abandoned paddy terraces, we investigated at four well-maintained abandoned paddy terraces in 3 different climatic zones in Korea. Soil texture of abandoned paddy terraces was mostly kinds of loam and electric conductivity of soil was also similar among abandoned paddy terraces. On the other hand, contents of nitrogen, phosphorus, potassium, sodium, magnesium, and calcium in soil were relatively low and significantly different among abandoned paddy terraces. Water depth was different within sites and inter-sites. Although environmental conditions including climate, soil condition and water depth were different among abandoned paddy terraces, the compositions of plant communities were relatively similar in all abandoned paddy terraces. 55 dominant taxa out of 141 recorded species were commonly recorded over sites and they were mostly perennial obligate wetland plants and facultative wetland plants. 8 taxa out of 55 dominant taxa occurred at all abandoned paddy terraces with over 10% coverage. Several site-specific species occurred at site, which have some area with deep water level. This result indicates that early development of plant community in abandoned paddy terraces of similar water regime is similar in the entire area of Korea even though environmental conditions such as climate, biogeographic history and soil are different.

• 환경위생공학
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• 제14권3호
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• pp.99-106
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• 1999

This research was carried out to investigate chemical pretreatment using lime and limestone in treating abandoned mine drainage with anaerobic treatment. If treating lime with abandoned mine drainage, after 2day, pH was increased to 5.6, and $SO_4^{2-}$, Fe, Al, Pb and Mn were removed 5.7%, 63%, 57, 45% and 28%, respectively. It was estimated that lime dosage was 2,000mg/L for increasing to pH 7. If treating limestone with abandoned mine drainage, after 2day, pH was increased to 3.67, and $SO_4^{2-}$, Fe, Al, Pb and Mn were removed 4.7%, 26%, 22% 18% and 8%, respectively. It could be showed that limestone did slowly react with temperature increasing. If treating anaerobic limestone packing column with abandoned mine drainage, for experimental period, average pH was 4.51, and average $SO_4^{2-}$, Fe, Al, Pb and Mn were removed 4.5%, 15.3%, 20.1%, 23.7% and 5.87%, respectively. So, it would not be suitable for abandoned mine drainage. But if utilizing limestone as pretreatment process for treating abandoned mine drainage with SRB, because it did initally neutralize abandoned mine drainage, it could forward to stabilize system.

• 한국물환경학회지
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• 제22권5호
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• pp.871-878
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• 2006

Batch experiments were performed to evaluate the applicability of soil washing for heavy metal contaminated soils at Nacdong and Hamchang abandoned mines. The texture of the Nacdong soil was sandy loam. Nacdong abandoned mine soil was almost neutral (pH=6.5). Contaminations of As, Cd, Pb and Zn for Nacdong mine soils were 12,900 mg/kg, 29 mg/kg, 696 mg/kg and 276 mg/kg, respectively. Hamchang abandoned mine soils were acidic (pH=2.6) and the soil texture was loam. The contaminations of As, Cd, Pb and Zn for Hamchang abandoned mine soils were 6,410 mg/kg, 291 mg/kg, 1,300 mg/kg and 1,110 mg/kg, respectively. For the Nacdong abandoned mine soils, oxalic acid was found to be the most effective soil washing extracter for As and Pb while citric acid was the most effective extracter for Cd. For the Hamchang abandoned mine soils, oxalic acid showed the highest extraction efficiencies for As and Pb, whilst citric acid presented the best soil washing efficiencie for Cd. Oxalic acid and EDTA were found to be the most effective soil washing extracter for the Hamchang abandoned mine contaminated soils.

• 대한전자공학회논문지SP
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• 제49권3호
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• pp.60-66
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• 2012

본 논문에서는 복잡한 환경에서 버려진 물체를 감시하기 위해 코너 검출기를 이용하여 버려진 물체 주변의 특징점을 검출하고, 이를 이용하여 가려진 경우에도 위치 정보를 추정할 수 있는 방법을 제안한다. 기존의 방법은 버려진 물체가 검출된 이후 가림 현상이 발생하면, 버려진 물체의 위치 정보를 손실하기 때문에 지속적인 감시가 불가능하다. 본 논문에서는 이러한 문제점을 개선하기 위해 해리스 코너 검출자를 이용하여 버려진 물체 주변의 특징점들을 추출하고, 특징점들과 버려진 물체의 중심을 연결하는 서포터를 이용하여 물체의 상대적인 위치를 추정한다. 따라서 버려진 물체가 다른 객체에 의해 가려지더라도 주변 코너를 이용하여 상대적인 위치를 추정할 수 있다. 제안된 방법은 지능형 감시시스템에 적용되어 버려진 물체 검출 및 감시에 활용될 수 있으며 이를 통해 버려진 가방이나 물건 등으로 위장한 물체를 이용한 폭탄테러를 미연에 방지할 수 있다.

• 농촌계획
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• 제16권3호
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• pp.185-197
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• 2010

This study aims to propose the direction of practical use of the abandoned farmlands. To achieve this purpose, the main tasks of this research are : 1) investigating the precedent researches and several domestic and foreign case studies 2) examining the devices of managing and revitalizing of the abandoned farmlands, and 3) designing the abandoned farmlands revitalization cases in study areas. This research proposed several development directions and action 'plans for agricultural reuse and non-agricultural reuse of abandoned farmlands. In conclusion, this study is expected to use the basic policy information of the abandoned farmlands revitalization projects.

• Spatial Information Research
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• 제10권1호
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• pp.123-138
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• 2002

폐탄광 지역에서의 광해문제 해결과 재개발 및 경제활성화를 위해서 폐탄광 관련정보들을 체계적으로 관리 ·분석하는 폐탄광GIS의 구축이 요구되고 있다 국내외 사례분석을 통하여 기본개념을 구상했으며, 이를 바탕으로 삼척시 고사리 지역을 대상으로 시범시스템을 구축하였다. 시범시스템 구축을 통해 가장 합리적인 구축방법을 도출하고, 시범시스템 과정에서 도출된 문제점을 분석하여 항후 폐탄광GIS 구축사업의 향후 추진방안과 일정을 제시하였다.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2004년도 Proceedings of ISRS 2004
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• pp.253-255
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• 2004

The mining-related damages such as ground subsidence, acid mine drainage(AMD), and deforestation in the abandoned underground coal mine areas become an object of public concern. Therefore, the system to manage the miningrelated damages is needed for the effective drive of rehabilitation activities. The management system for Abandoned Underground Coal Mine using GIS includes the database about mining record and information associated with the mining-related damages and application programs to support mine damage prevention business. Also, this system would support decision-making policy for rehabilitation and provide basic geological data for regional construction works in abandoned underground coal mine areas.